Hello, I am developing a "C" video conference application ; I use video4linux API; I am working with /dev/video0 device. sometimes I get the error : "device or resource busy". Does this indicates solely that I did not close /dev/video0 ? Or can there be other possibilities ? regards, sting _________________________________________________________________MSN 8 helps eliminate e-mail viruses. Get 2 months FREE*. http://join.msn.com/?page=features/virus